P2500S - Power amplifier YAMAHA - Free user manual and instructions

USER MANUAL P2500S YAMAHA

The above warning is located on the top of the unit

- Explanation of Graphical Symbols

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

IMPORTANT SAFETY INSTRUCTIONS

1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
8 Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9 Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10 Protect the power cord from being walked on or pinched particularly at plugs, convenience

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

WARNING: THIS APPARATUS MUST BE EARTHED

IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:

GREEN-AND-YELLOW : EARTH

BLUE : NEUTRAL

BROWN : LIVE

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows:

The wire which is coloured GREEN-and-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol ⏻ or colored GREEN or GREEN-and-YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.

receptacles, and the point where they exit from the apparatus.

11 Only use attachments/accessories specified by the manufacturer.

12 Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.

When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over.

13 Unplug this apparatus during lightning storms or when unused for long periods of time.

14 Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

1 + 1 + - BRIDGE B A

This 14 mark indicates a dangerous electrically live terminal. When connecting an external wire to this terminal, it is necessary either to have “a person who have received appropriate guidance on handling” make the connection or to use leads or a cord that have been manufactured in such a way that the connection can be made simply and without problem.

— For safe operation —

WARNING

Installation

• Connect this unit's power cord only to an AC outlet of the type stated in this Owner's Manual or as marked on the unit. Failure to do so is a fire and electrical shock hazard.
• Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result.
• Do not place a container with liquid or small metal objects on top of this unit. Liquid or metal objects inside this unit are a fire and electrical shock hazard.
• Do not place heavy objects, including this unit, on top of the power cord. A damaged power cord is a fire and electrical shock hazard. In particular, be careful not to place heavy objects on a power cord covered by a carpet.
• Be sure to connect to an appropriate outlet with a protective grounding connection. Improper grounding can result in electrical shock.

Operation

• Do not scratch, bend, twist, pull, or heat the power cord. A damaged power cord is a fire and electrical shock hazard.

• Do not remove the unit's cover. You could receive an electrical shock. If you think internal inspection, maintenance, or repair is necessary, contact your dealer.

• Do not modify the unit. Doing so is a fire and electrical shock hazard.

• If lightning begins to occur, turn off the power switch of the unit as soon as possible, and unplug the power cable plug from the electrical outlet.
• If there is a possibility of lightning, do not touch the power cable plug if it is still connected. Doing so may be an electrical shock hazard.

In case an abnormality occurs during operation

• If the power cord is damaged (i.e., cut or a bare wire is exposed), ask your dealer for a replacement. Using the unit with a damaged power cord is a fire and electrical shock hazard.
• Should this unit be dropped or the cabinet be damaged, turn the power switch off, remove the power plug from the AC outlet, and contact your dealer. If you continue using the unit without heeding this instruction, fire or electrical shock may result.
• If you notice any abnormality, such as smoke, odor, or noise, or if a foreign object or liquid gets inside the unit, turn it off immediately. Remove the power cord from the AC outlet. Consult your dealer for repair. Using the unit in this condition is a fire and electrical shock hazard.

CAUTION

Installation

• Keep this unit away from the following locations:
• Locations exposed to oil splashes or steam, such as near cooking stoves, humidifiers, etc.
• Unstable surfaces, such as a wobbly table or slope.
• Locations exposed to excessive heat, such as inside a car with all the windows closed, or places that receive direct sunlight.
• Locations subject to excessive humidity or dust accumulation.

- Do not place the power cord close to a heater. It may melt, causing fire or electrical shock.

- Hold the power cord plug when disconnecting it from an AC outlet. Never pull the cord. A damaged power cord is a potential fire and electrical shock hazard.

- Do not touch the power plug with wet hands. Doing so is a potential electrical shock hazard.

- This unit has ventilation holes at the front and rear to prevent the internal temperature rising too high. Do not block them. Blocked ventilation holes are a fire hazard.

In particular, do not

• place the unit on its side or upside down,
• place the unit in any poorly-ventilated location such as a book-case or closet (other than on the dedicated rack),
• cover the unit with a table cloth or place it on a carpet or bed.

- Allow enough free space around the unit for normal ventilation. This should be: 5 cm at the sides, 10 cm behind, and 10 cm above. If the airflow is not adequate, the unit will heat up inside and may cause a fire.

- To mount several of these units in a standard EIA rack, refer to the rack mounting instructions on page 11.

• To relocate the unit, turn the power switch off, remove the power plug from the AC outlet, and remove all connecting cables. Damaged cables may cause fire or electrical shock.
• When setting up the product, make sure that the AC outlet you are using is easily accessible. If some trouble or malfunction occurs, immediately turn off the power switch and disconnect the plug from the outlet. Even when the power switch is turned off, electricity is still flowing to the product at the minimum level. When you are not using the product for a long time, make sure to unplug the power cord from the wall AC outlet.
• Do not place the device in a location where it may come into contact with corrosive gases or salt air. Doing so may result in malfunction.

Operation

• Use only speaker cables when connecting speakers to amplifier outputs. Using other types of cables is a fire hazard.
• Turn off all musical instruments, audio equipment, and speakers when connecting to this unit. Use the correct connecting cables and connect as specified.
• Always lower the volume control to minimum before turning on the power to this unit. A sudden blast of sound may damage your hearing.
• Do not use this amplifier for any purpose other than driving loudspeakers.
• If you know you will not use this unit for a long period of time, such as when going on vacation, remove the power plug from the AC outlet. Leaving it connected is a potential fire hazard.

— For correct operation —

Connector pin assignments

- XLR-type connectors are wired as follows Pin 1: ground; Pin 2: hot (+); Pin 3: cold (−).

Interference from Cell Phones

- Use of a mobile phone near this unit may induce noise. If noise occurs, move the phone further from the unit.

Always turn the power off when the amplifier is not in use.

Illustrations in this manual are for explanatory purposes only, and may not match the actual appearance of the product during operation.

Company names and product names used in this Owner's Manual are trademarks or registered trademarks of their respective owners.

FCC INFORMATION (U.S.A.)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.

1. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA.

Thank you for your purchase of the YAMAHA P7000S, P5000S, P3500S or P2500S power amplifier. These P-series amplifiers fully incorporate Yamaha's renown technological expertise, and offer high reliability, rock-solid stability, and superb acoustic characteristics—all in a trim, 2U-sized package.

Features

• With two types of input jacks (balanced XLR and balanced phone) and three types of output jacks (Speakon, 5-way binding post, and phone), the P series is suitable for a wide variety of applications and installed systems.
• The unit offers three operating modes: STEREO (where Channels A and B operate independently), PARALLEL (where the unit outputs a mono source through twin amplifier systems), and BRIDGE (where the unit operates as a single high-power amp).
• Each channel is equipped with an independent OFF/LOW CUT/SUBWOOFER switch—where LOW CUT engages a high-pass filter, and SUBWOOFER engages a low-pass filter. With LOW CUT or SUBWOOFER selected, you can adjust the cutoff frequency from 25 to 150Hz .
  • Each channel has its own SIGNAL and CLIP indicators.
• The PROTECTION indicator lights up—and sound output is automatically muted—whenever the unit’s protective circuitry is operating. The TEMP indicator lights up if the unit is running hot.
• Variable-speed low-noise fans ensure high reliability.

This Owner's Manual covers the four models: P7000S, P5000S, P3500S and P2500S power amplifiers. Please read through this manual carefully before beginning use, so that you will be able to take full advantage of the amplifier's superlative features and enjoy trouble-free operation for years to come. After reading through the manual, please store it in a safe place.

Contents

Controls and Functions 6

Front Panel 6

Rear Panel 7

Speaker Connections 9

Speaker impedance 9

Wiring 10

Rack Mounting 11

Specifications 12

General Specifications 12

Block Diagram 13

Dimensions 14

Current Draw 14

Troubleshooting 15

Front Panel

YAMAHA TEMP PROTECTION POWER ON/OFF ② ④ POWER AMPLIFIER P7000S CLIP SIGNAL -0.5V -0.5V -0.5V ⑤⑦⑥ ⑧

① POWER switch and indicator

Press to toggle the power on or off. The POWER indicator lights up green when the power is ON.

② TEMP indicator

Lights up red if the heat sink temperature exceeds 85^ C ( 185^ F).

③ PROTECTION indicator

Lights up red to indicate that protection is in effect. Specifically, lights up if the heat sink overheats, or if a DC voltage is detected at the amplifier outputs. Also lights up for about three seconds at time of power-on, as the amp gets ready to operate. To provide protection, the unit will not output any sound from the speakers while this indicator is lit up. When start-up is completed or the problem is corrected, the indicator goes off and normal operation resumes.

④ CLIP indicator

Lights up red when the output signal distortion on the corresponding channel rises above 1%—indicating that “clipping” has occurred because the signal level is too high.

⑤ SIGNAL indicator

Lights up green when the corresponding channel's output level exceeds 2 Vrms (equivalent to 1/2W into an 8 load, or 1W into a 4 load).

⑥ Volume control knobs

Each control knob adjusts the volume of the corresponding channel, in 31 steps from - dB to 0 dB.

NOTE:

If you wish to lock in the knob settings, you can fasten the supplied security cover over the knobs so that the settings will not be disturbed.

How to install the security cover

(1) Use the supplied hex wrench to remove the four attachment screws from the amplifier.
(2) Adjust the security cover to the position of screw holes. Fasten it into place using the same screws.

A CLIP SIGNAL B YSProcessing -dB -15 20 15 10 6 3 0 -40 30 40 0 -30 25 10 6 3 0 -dB

⑦ Y5Processing indicator

Lights up yellow if the YS PROCESSING switch on the rear panel is set ON. (See page 7.)

⑧ Air intakes

The amplifier uses forced-air cooling. The cooling fans draw air in from the front and exhaust it through the rear. Please be sure that you do not block the air intakes or exhaust vents.

NOTE:

The fans do not come on at initial power-on, but will switch on automatically when the temperature of the heat sink rises above 50^ C ( 122^ F). The fan speed will then vary automatically as the temperature changes.

Rear Panel

① ② ③ ④ ⑤ ⑥ LOWCUT SUB WOOFER OFF C SUB WOOFER LOWCUT 1 2 3 50 Hz 150 FREQUENCY NO Processing ON OFF STEREO BRIDGE PARALLEL FREQUENCY SPEAKERS 3 2 3 LOCK B 1 1 1 + 10 A + 10 B + 5 B BRIDGE B + 3 BRIDGE A

① FILTER switch and FREQUENCY adjustment knob (One pair for each channel)

Use these controls to select the filter type and adjust the cutoff frequency on each channel (A and B). You use the FILTER switch to select the filter, as follows.

OFF SUB LOWCUT WOOFER

OFF......Do not use any filter.

SUBWOOFER..... Use a low-pass filter. The amplifier outputs the frequencies that are lower than the cut-off set by the FREQUENCY adjustment knob.

LOW CUT ...... Use a high-pass filter. You can use this setting to filter out unneeded low or subsonic frequencies.

If you select SUBWOOFER or LOW CUT, you can then use the FREQUENCY adjustment knob to adjust the cutoff frequency. The adjustment range is 25 Hz to 150 Hz.

Cutoff frequency 25 Hz to 150 Hz

NOTE:

If the amplifier is set to BRIDGE mode, only the switch and knob for Channel A are effective. (The Channel B frequency controls are disabled.)

② YSProcessing ON/OFF switch

If you set this switch ON, the amplifier adds low-frequency compensation so as to enhance speaker output. The results (the actual change in the low-frequency balance) will vary according to the speaker type. Note that this switch is effective only if the FILTER switch is set to OFF.

NOTE:

This feature provides improved frequency response on speakers such as the YAMAHA S112 and S115.

③ INPUT jacks (Channels A, B)

Two jack types are provided for each channel. Note that if you are using BRIDGE or PARALLEL mode, only the Channel A jacks are effective.

- XLR-3-31 jack

The XLR-3-31 input jacks are wired as shown below.

hot 2 1 ground 3 cold

- Phone jack

Phone jacks are wired as follows.

ring (cold) sleeve (ground) tip (hot)

④ STEREO/PARALLEL/BRIDGE switch

Use this switch to select the operating mode.

- STEREO mode

Channels A and B operate independently (as with a conventional stereo amplifier). The Channel A input goes to the Channel A output jacks, and the Channel B input goes to the Channel B output jacks.

- PARALLEL mode

The Channel A input signal is output through both the Channel A and Channel B output jacks. The Channel B input jacks do not function. Channel A and B volumes can be independently adjusted.

- BRIDGE mode

The Channel A input signal is output from the BRIDGE output jacks. To adjust the volume, you must use the Channel A volume control knob.

⑤ SPEAKER jacks

Neutrik NL4FC Speakon output connectors,

5-way binding post output jacks,

Phone output jacks

For minimum speaker impedenance values, see page 9.

⑥ GND terminal

This is a screw-type ground terminal. If you are having a problem with hum or noise, use this terminal to connect to ground or to connect to the chassis of the mixer, preamp, or other device in your system.

■ Speaker impedance

Speakers can be connected to the amplifier as shown below. Note that speaker impedance will vary according to the connection method and the number of speakers. Please be sure that your speakers' impedance is not less than the relevant minimum value indicated below.

Connection configurations for STEREO and PARALLEL modes

When using 5-way binding post output jacks

STEREO BRIDGE PARALLEL or STEREO BRIDGE PARALLEL BRIDGE Minimum speaker impedance: 4 Ω Minimum speaker impedance: 4 Ω

When using Speakon connector

SPEAKERS 1+ A 2+ B 1+ BRIDGE 2+ BRIDGE MINIMUM speaker impedance: 4 Ω

When using phone jack

SPEAKERS 2 3 A B BRIDGE Minimum speaker impedance: 4 Ω

Connection configurations for BRIDGE mode

When using 5-way binding post output jacks

STEREO BRIDGE PARALLEL B BRIDGE - + Minimum speaker impedance: 8 Ω

When using Speakon connector

SPEAKERS 2 3 1+ + 1- ○ A 2+ + 2- ○ B 1+ ○ BRIDGE 2+ ○ Minimum speaker impedance: 8 Ω

■ Wiring

5-way binding post

(1) Turn off the POWER switch.
(2) Remove the cover attachment screws and remove the protective cover from the speaker terminals.

Screw

(3) Remove about 15mm of insulation from the end of each speaker cable, and pass the bare wire through the holes in the appropriate speaker terminals. Tighten the terminals to securely clamp the wires. Refer to page 9 for speaker polarities.

15mm* Speaker cable * Actual size

Note to users in the USA:
Please use Class 3 wiring. (P7000S, P5000S)
Please use Class 2 wiring. (P3500S, P2500S)

Be sure that the bare wire ends do not jut out from the terminals and touch the chassis. The following shows how the cable should look when correctly attached.

Bare wire Chassis

(4) Reattach the protective cover over the speaker terminals.

Speakon connector

(1) Turn off the POWER switch.
(2) Insert the Neutrik NL4FC plugs into the Speakon connector on the rear of the amplifier, and turn clockwise to lock.

Neutrik NL4FC plugs

CHANNEL A STEREO or PARALLEL BRIDGE 1+ A+ 1- A- 2+ B+ 2- B- 1+ + 1- / 2+ - 2-

Neutrik NL4FC plugs

CHANNEL B
1+	B+
1-	B-

Phone jack

(1) Turn off the POWER switch.
(2) Insert the phone plug into the jack on the rear of the amplifier.

Mounting in a standard EIA rack

If you are mounting multiple power amplifiers in a rack, be sure to install ventilation panel(s) as shown below. Also be sure to use metal brackets (one on each side) to support the rear of each amplifier.

Note: EIA stands for Electronic Industries Alliance.

Ventilation panel(s)

Use 1U-size blank panel(s).

480 44

Unit: mm

If mounting up to four amplifiers in an open-backed rack

Install a ventilation panel as shown below.

Ventilation panel (Attach to the front or rear of the rack.)

YAMAHA YAMAHA YAMAHA YAMAHA

When mounting five or more amplifiers in an open-backed rack, and when mounting any number of amplifiers in a close-backed rack

Install ventilation panels above and below each amplifier, as shown below.

YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA

General Specifications

		P7000S	P5000S	P3500S	P2500S
Power Output Level (Rated Power)	8 Ω/STEREO	750 W × 2	525 W × 2	390 W × 2	275 W × 2
1 kHz	4 Ω/STEREO	1100 W × 2	750 W × 2	590 W × 2	390 W × 2
THD + N = 1%	8 Ω/BRIDGE	2200 W × 1	1500 W × 1	1180 W × 1	780 W × 1
	8 Ω/STEREO	700 W × 2	500 W × 2	350 W × 2	250 W × 2
		650 W × 2 (European Model)
20 Hz - 20 kHz	4 Ω/STEREO	950 W × 2	700 W × 2	450 W × 2	310 W × 2
THD + N = 0.1%	8 Ω/BRIDGE	1900 W × 1	1400 W × 1	900 W × 1	620 W × 1
1 kHz	2 Ω/STEREO	1600 W × 2	1300 W × 2	1000 W × 2	650 W × 2
20 ms non-clip	4 Ω/BRIDGE	3200 W × 1	2600 W × 1	2000 W × 1	1300 W × 1
Power Bandwidth	Half Power	10 Hz - 40 kHz (THD + N = 0.5 %)
Total Harmonic Distortion (THD + N)	4 Ω - 8 Ω/STEREO	≤ 0.1 %
20 Hz - 20 kHz, Half Power	8 Ω/BRIDGE
Frequency Response	RL = 8 Ω, Po = 1 W	0 dB, +0.5 dB, -1 dB f = 20 Hz - 50 kHz
Intermodulation distortion (IMD)	4 Ω - 8 Ω/STEREO	≤ 0.1 %
60 Hz:7 kHz, 4:1, Half Power	8 Ω/BRIDGE
Channel Separation	Half Power RL = 8 Ω 1 kHz	≥ 70 dB
Vol. max	input 600 Ω shunt
Residual Noise Vol. min.	20 Hz - 20 kHz (DIN AUDIO)	≤ -70 dBu
SN Ratio	20 Hz - 20 kHz (DIN AUDIO)	104 dB	103 dB	102 dB	100 dB
Damping Factor	RL = 8 Ω, 1 kHz	≥ 350		≥ 200
Sensitivity (Vol. max.) Rated Power 8 Ω		+8 dBu	+6 dBu	+4 dBu	+3 dBu
Voltage Gain (Vol. max.)		32.1 dB
Input Impedance		30 kΩ/balanced, 15 kΩ/unbalanced
Controls	Front Panel	POWER switch (Push on/Push off)Two 31-step Volume control knobs (one per ch)
	Rear Panel	MODE switch (STEREO/PARALLEL/BRIDGE)Two FILTER switches (SUBWOOFER/LOW CUT/OFF)Two fc knobs (25 to 150 Hz, 12 dB/octave)YS Processing switch (ON/OFF)
Connectors	INPUT	XLR-3-31 jacks (one per ch)1/4-inch TRS phone jacks (one per ch)
	OUTPUT	Speakon jacks (one per ch)5-way binding posts1/4-inch phone jacks (one per ch)
Indicators	POWER	× 1 (Green)
	PROTECTION	× 1 (Red)
	TEMP	× 1 (Red) (heatsink temp ≥ 85°C)
	CLIP	× 2 (Red)
	SIGNAL	× 2 (Green)
	YS Processing	× 1 (Yellow)
Load protection		POWER switch ON/OFF muting
		DC-fault power supply shutdown		DC detection
Amp. protection		Temp. detection (heat sink temp ≥ 90°C), VI limiter (RL ≤ 1 Ω)
Limiter		Comp: THD ≥ 0.5 %
Cooling		Dual variable-speed fan		Single variable-speed fan
Power Requirements	United States & Canada	120 V, 60 Hz
	Europe	230 V, 50 Hz
	Australia	240 V, 50 Hz
Power Consumption	Idling	35 W	35 W	30 W	25 W
	Output power, 4 Ω	650 W	500 W	450 W	320 W
Dimensions (W × H × D)		480 × 88 × 456 mm
Weight		12 kg	12 kg	15 kg	14 kg
Included Accessories		Security cover (with a hex wrench), Owner's Manual

0 dBu=0.775 Vrms, Half Power=1/2 Power Output Level (Rated Power)
Specifications and descriptions in this owner's manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specifications at any time without prior notice. Since specifications, equipment or options may not be the same in every locale, please check with your Yamaha dealer.
European models
Purchaser/User Information specified in EN55103-1 and EN55103-2.
Inrush Current: 25A (P7000S, P5000S)/66A (P3500S)/68A (P2500S)
Conforms to Environments: E1, E2, E3 and E4

Block Diagram

P7000S, P5000S

graph TD
    A["INPUT"] --> B["CHANNEL A (BRIDGE) (PARALLEL)"]
    A --> C["CHANNEL B"]
    B --> D["State variable Active filter"]
    C --> E["State variable Active filter"]
    D --> F["FREQUENCY (25Hz-150Hz)"]
    E --> G["FREQUENCY (25Hz-150Hz)"]
    F --> H["OFF"]
    G --> I["OFF"]
    H --> J["SUBWOOFER LOW CUT"]
    I --> K["SUBWOOFER LOW CUT"]
    J --> L["LEVEL 1"]
    K --> M["LEVEL 2"]
    L --> N["LIMITER"]
    M --> O["Limiter"]
    N --> P["Ach Power Amp"]
    O --> Q["Bch Power Amp"]
    P --> R["SPEAKERS"]
    Q --> S["SPEAKERS"]
    R --> T["SIGNAL 3"]
    S --> U["SIGNAL 2"]
    T --> V["CHANNEL A"]
    U --> W["CHANNEL B"]
    V --> X["POWER"]
    W --> Y["POWER CIRCUIT"]
    X --> Z["Shutdown"]
    Y --> AA["+B"]
    Y --> AB["E"]
    Y --> AC["-B"]
    Y --> AD["+15"]
    Y --> AE["E"]
    Y --> AF["-15"]
    Z --> AG["FAN"]
    Z --> AH["FAN"]

P3500S, P2500S

graph TD
    subgraph INPUT
        A["CHANNEL A [BRIDGE"] [PARALLEL]] --> BA
        B["CHANNEL B"] --> BA
        BA --> C["State variable Active filter"]
        C --> D["HPF LPF"]
        C --> E["OFF"]
        C --> F["YAMAHA SPEAKER PROCESSING"]
        F --> G["INV"]
        G --> H["Limiter"]
        H --> I["Ach Power Amp"]
        I --> J["CLIP"]
        J --> K["SIGNAL"]
        K --> L["1+ 2- 3 SPECTRUM"]
        L --> M["PROTECTION CIRCUIT"]
        M --> N["TEMP"]
        N --> O["SIGNAL"]
        O --> P["1+ 2- 3 SPECTRUM"]
    end

    subgraph POWER
        Q["POWER SW"] --> R["POWER CIRCUIT"]
        R --> S["+B E -B +24 E -24"]
        R --> T["FAN"]
    end

    C --> U["State variable Active filter"]
    U --> V["LPF HPF"]
    U --> W["OFF"]
    U --> X["CHANNEL B ATT"]
    U --> Y["PARALLEL BRIDGE STEREO"]
    Y --> Z["Limiter"]
    Z --> AA["Bch Power Amp"]
    AA --> AB["CLIP"]
    AB --> AC["SIGNAL"]
    AC --> AD["1+ 2- 3 SPECTRUM"]

    subgraph CHANNEL A
        AE["CHANNEL A [BRIDGE"] [PARALLEL]] --> AF["BA"]
        AF --> AG["Frequency [25 Hz-150 Hz"]]
        AG --> AH["ON OFF"]
        AH --> AI["YAMAHA SPEAKER PROCESSING"]
        AI --> AJ["INV"]
        AJ --> AK["Limiter"]
        AK --> AL["Ach Power Amp"]
        AL --> AM["SIGNAL"]
        AM --> AN["1+ 2- 3 SPECTRUM"]

    subgraph CHANNEL B
        AO["CHANNEL B"] --> AP["BA"]
        AP --> AQ["Frequency [25 Hz-150 Hz"]]
        AQ --> AR["YAMAHA SPEAKER PROCESSING"]
        AR --> AS["INV"]
        AS --> AT["Limiter"]
        AT --> AU["Ach Power Amp"]
        AU --> AV["SIGNAL"]
        AV --> AW["1+ 2- 3 SPECTRUM"]

    subgraph TRANSMAIN
        AX["SPEAKERS"] --> AY["3"]
        AX --> AZ["2"]
        AX --> BA["1"]
        AX --> BB["1+ 2- 3 SPECTRUM"]

        BC["Temperature Sensor (Heat Sink)"] --> BD["Protection Circuit"]
        BD --> BE["PROTECTION CIRCUIT"]
        BE --> BF["SIGNAL"]
    end

    subgraph TRANSMAIN
        BG["SPEAKERS"] --> BH["3"]
        BG --> BI["2"]
        BG --> BJ["1+ 2- 3 SPECTRUM"]

        BK["CHANNEL A"] --> BL["2- 3"]
    end

Dimensions

Current Draw

P7000S

		Line Current (A)		Power (W)			Thermal Dissipation
		100/120V	230/240V	In	Out	Dissipated	Btu/h	kcal/h
standby		0.08	0.04	5	0	5	17	4
idle		1.0	0.5	35	0	35	119	30
1/8 power	8Ω/ch	5.4	3.0	379	188	191	653	165
	4Ω/ch	8.5	4.7	611	275	336	1150	289
1/3 power	8Ω/ch	12.8	7.0	918	500	418	1430	360
	4Ω/ch	20.6	11.3	1481	733	748	2550	643

P5000S

		Line Current (A)		Power (W)			Thermal Dissipation
		100/120V	230/240V	In	Out	Dissipated	Btu/h	kcal/h
standby		0.08	0.04	5	0	5	17	4
idle		1.0	0.5	35	0	35	119	30
1/8 power	8Ω/ch	4.0	2.2	277	131	146	499	126
	4Ω/ch	6.2	3.4	436	188	249	848	214
1/3 power	8Ω/ch	9.3	5.1	673	350	323	1100	278
	4Ω/ch	14.7	8.1	1057	500	557	1900	479

P3500S

		Line Current (A)		Power (W)			Thermal Dissipation
		100/120V	230/240V	In	Out	Dissipated	Btu/h	kcal/h
standby		0.08	0.04	5	0	5	17	4
idle		1.0	0.5	30	0	30	102	26
1/8 power	8Ω/ch	3.2	1.7	227	98	130	443	112
	4Ω/ch	5.0	2.8	378	148	231	787	198
1/3 power	8Ω/ch	7.3	4.0	551	260	291	993	250
	4Ω/ch	12.2	6.7	917	393	524	1790	450

P2500S

		Line Current (A)		Power (W)			Thermal Dissipation
		100/120V	230/240V	In	Out	Dissipated	Btu/h	kcal/h
standby		0.08	0.04	5	0	5	17	4
idle		1.0	0.5	25	0	25	85	22
1/8 power	8Ω/ch	2.4	1.3	174	69	105	358	90
	4Ω/ch	3.6	2.0	271	98	173	592	149
1/3 power	8Ω/ch	5.6	3.1	421	183	238	811	204
	4Ω/ch	8.8	4.8	657	260	397	1350	341

1/8 power is typical of program material with occasional clipping. Refer to these figures for most applications.

1/3 power represents program material with extremely heavy clipping.

Test signal: Pink Noise, bandwidth limited from 22Hz to 22kHz

1W = 0.860kcal/h, 1BTU = 0.252kcal

Note that Line Voltage [V] x Line Current [A] = [VA], not equals to [W].

Inrush current

P7000S, P5000S: 11A (100V), 13A (120V), 25A (240V)

P3500S: 71A (100V), 87A (120V), 66A (240V)

P2500S: 103A (100V), 150A (120V), 68A (240V)

Troubleshooting

The following table lists the main causes of abnormal operation and the corrective measures required, as well as the protective circuit operation in each case.

Indicator(s)	Possible Cause	Remedy	Protection Circuit
CLIP indicator lights.	There is a short at a speaker terminal, amplifier terminal, or wire.	Locate and correct the cause of the short.	The PC limiter circuit operates to protect the power transistors.
	The amplifier load is excessive.	Use a speaker system with an impedance of at least 4 Ω (STEREO/PARALLEL mode) or 8 Ω (BRIDGE mode).
TEMP indicator lights.	The heat sink temperature has exceeded 85°C (185°F).	Check the ventilation slots, and provide better airflow around the amplifier.	The TEMP indicator lights up to indicate temperature warning.
PROTECTION indicator lights.	The heat sink temperature has exceeded 95°C (203°F).	Check the amplifier ventilation conditions and take appropriate measures to improve the airflow around the amplifier.	The thermal protection circuit operates to protect the power transistors.

P3500S, P2500S

Indicator(s)	Possible Cause	Remedy	Protection Circuit
PROTECTION indicator lights.	A DC voltage of ±2 V or greater was generated in the power amplifier's output circuit.	Consult your dealer or the nearest Yamaha service center.	The relay operates to protect the speaker system.

P7000S, P5000S

Indicator(s)	Possible Cause	Remedy	Protection Circuit
Power has been shut down. (All indicators are off.)	A DC voltage of ±2 V or greater was generated in the power amplifier's output circuit.	Consult your dealer or the nearest Yamaha service center.	The protection circuitry shut off the power to protect the speaker system.

For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below.

Yamaha Canada Music Ltd.

135 Milner Avenue, Scarborough, Ontario,

M1S 3R1, Canada

Tel: [phone]

U.S.A.

Yamaha Corporation of America

6600 Orangethorpe Ave., Buena Park, Calif. 90620,

U.S.A.

Tel: [phone]

CENTRAL & SOUTH AMERICA

MEXICO

PANAMA AND OTHER LATIN

AMERICAN COUNTRIES/

CARIBBEAN COUNTRIES

Yamaha Music Latin America, S.A.

Sherbourne Drive, Tilbrook, Milton Keynes,

MK7 8BL, England

Tel: [phone]

GERMANY

Yamaha Music Europe GmbH

Siemensstraße 22-34, 25462 Rellingen, Germany

Tel: [phone]

Branch Switzerland in Zürich

Seefeldstrasse 94, 8008 Zürich, Switzerland

Tel: [phone]

AUSTRIA

Yamaha Music Europe GmbH Branch Austria

Schleiergasse 20, A-1100 Wien, Austria

Tel: [phone]

CZECH REPUBLIC/SLOVAKIA/

HUNGARY/SLOVENIA

Yamaha Music Europe GmbH Branch Austria

Schleiergasse 20, A-1100 Wien, Austria

Tel: [phone]

POLAND

Yamaha Music Europe GmbH

YS Copenhagen Liaison Office

Generatorvej 6A, DK-2730 Herlev, Denmark

Tel: [phone]

NORWAY

Yamaha Music (Russia)

Office 4015, entrance 2, 21/5 Kuznetskii

Most street, Moscow, 107996, Russia

Tel: [phone]

OTHER EUROPEAN COUNTRIES

Yamaha Music Europe GmbH

Siemensstraße 22-34, 25462 Rellingen, Germany

Tel: [phone]

AFRICA

Yamaha Corporation,

Asia-Pacific Music Marketing Group

Nakazawa-cho 10-1, Naka-ku, Hamamatsu,

Japan 430-8650

Tel: [phone]

MIDDLE EAST

TURKEY/CYPRUS

Yamaha Music Europe GmbH

Siemensstraße 22-34, 25462 Rellingen, Germany

Tel: [phone]

OTHER COUNTRIES

Yamaha Music Gulf FZE

LOB 16-513, P.O.Box 17328, Jubel Ali,

Dubai, United Arab Emirates

Tel: [phone]

ASIA

THE PEOPLE'S REPUBLIC OF CHINA

Yamaha Music & Electronics (China) Co., Ltd.

2F, Yunhedasha, 1818 Xinzha-lu, Jingan-qu,

Shanghai, China

Tel: [phone]

INDIA

Yamaha Music India Pvt. Ltd.

5F Ambience Corporate Tower Ambience Mall Complex

Ambience Island, NH-8, Gurgaon-122001, Haryana, India

Tel: [phone]

INDONESIA

PT. Yamaha Music Indonesia (Distributor)

PT. Nusantik

Gedung Yamaha Music Center, Jalan Jend. Gatot

Subroto Kav. 4, Jakarta 12930, Indonesia

Tel: [phone]

KOREA

Yamaha Music Korea Ltd.

8F, 9F, Dongsung Bldg. 158-9 Samsung-Dong,

Kangnam-Gu, Seoul, Korea

Tel: [phone]

MALAYSIA

Yamaha Music Malaysia, Sdn., Bhd.

Lot 8, Jalan Perbandaran, 47301 Kelana Jaya,

Petaling Jaya, Selangor, Malaysia

Tel: [phone]

SINGAPORE

Yamaha Music Asia Pte., Ltd.

03-11 A-Z Building

140 Paya Lebor Road, Singapore 409015

Tel: [phone]

TAIWAN

Yamaha KHS Music Co., Ltd.

3F, #6, Sec.2, Nan Jing E. Rd. Taipei.

Taiwan 104, R.O.C.

Tel: [phone]

THAILAND

Siam Music Yamaha Co., Ltd.

4, 6, 15 and 16^th floor, Siam Motors Building,

891/1 Rama 1 Road, Wangmai

Pathumwan, Bangkok 10330, Thailand

Tel: [phone]

OTHER ASIAN COUNTRIES

Yamaha Corporation,

Asia-Pacific Music Marketing Group

Nakazawa-cho 10-1, Naka-ku, Hamamatsu,

Japan 430-8650

Tel: [phone]

OCEANIA

AUSTRALIA

Yamaha Music Australia Pty. Ltd.

Level 1, 99 Queensbridge Street, Southbank,

Victoria 3006, Australia

Tel: [phone]

COUNTRIES AND TRUST

TERRITORIES IN PACIFIC OCEAN

Yamaha Corporation,

Asia-Pacific Music Marketing Group

Nakazawa-cho 10-1, Naka-ku, Hamamatsu,

Japan 430-8650

Tel: [phone]

HEAD OFFICE Yamaha Corporation, Pro Audio & Digital Musical Instrument Division

Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650

Tel: [phone]

Yamaha Pro Audio global web site

http://www.yamahaproaudio.com/

Yamaha Manual Library